Snail family transcriptional repressor 2 mRNA 3′ untranslated region (SNAI2 mRNA 3′UTR)

The SNAI2 mRNA 3′ untranslated region (3′UTR) is a critical regulatory segment of the messenger RNA encoding the Snail family transcriptional repressor 2, also known as Slug (UniProt: O43623). This region contains multiple binding sites for microRNAs (miRNAs) and RNA-binding proteins that control the stability and translation efficiency of the SNAI2 transcript. SNAI2 is a master regulator of the epithelial-mesenchymal transition (EMT), a process essential for embryonic development but frequently hijacked by cancer cells to promote invasion, metastasis, and resistance to therapy (PMID: 23568941). By targeting the SNAI2 mRNA 3′UTR with miRNA mimics or antisense oligonucleotides, researchers aim to suppress SNAI2 expression and reverse the EMT phenotype in aggressive tumors. Endogenous miRNAs such as miR-1, miR-124, and miR-203 naturally bind to this region to downregulate SNAI2, and their loss is often associated with poor prognosis in various malignancies (PMID: 21460138, PMID: 23873011). Consequently, this regulatory region represents a promising therapeutic target for preventing cancer progression and overcoming chemoresistance through RNA-based interventions.

Other names

SLUG mRNA 3′UTRSnail2 3′UTRSNAI2 3′-untranslated regionSLUG 3′-UTR

Binding of complementary RNA sequences, such as microRNA (miRNA) mimics or antisense oligonucleotides (ASOs), to specific seed sequences within the 3′UTR leads to the recruitment of the RNA-induced silencing complex (RISC), resulting in mRNA degradation or translational inhibition of the SNAI2 transcript (PMID: 20802496, PMID: 21460138).